Check-valve.



No. 860,017. PATBNTED JULY l5, 1907I J. A. CUNEO. lCHECK VALVE.

` APPLICATION FILED 1113.8, 190% wi h1 @aan JOHN ANTONIO CUNEO, OFSHPPENSVILLE, PENNSYLVANIA.

CHECKEVALVE Specication of Letters Patent.

Patented July 16,1907.

' Application tiled February 8,1907. Serial No. 356,405.

To all wlmmt may concern:

le it known that l, .lonN ANToNIo CUN Ee, a citizen ofthe United States,residing at Shippensvillo, flarion eounty, Pennsylvania, have inventedCertain new and useful Improvements in Cheek-Valves; andl do herebydef-lare the following,r to he a full, clear, and exact desr-ription ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being, had to theaccompanying drawings, and to letters or figures of reir-.renee markedthereon, which form a part ol this speci fieation.

y invention relates to cheek valves, and haafor its ohjeet to provide asimple and efficient valve wherein the valve and its seal. are readilyrermlvahle from the valve. case, together with details of constructionhereinafter more particularly deserihed and claimed.

Referring to the drawings, in which like parts are similarlydesignatedlligure l is a h ingitudinal een tml si on through the'valveand its easing, and Fig. 2v is a lyer'sl'ietive view of the reversible,rei'iovahle valve seat. l

The valve Case proper preferably, lint not nenessnrily, consists of a.union lvhaving a flange Connection 2 al. one end, designed to lead to asteam boiler or other. f leviee, and a flange connection Il at the otherend de .signed to lead to ahlow-oi'f from said lioilerxand helween thetwo flanges 2 and fl the union l has an internally threaded nipple 4 inwhieh is screwed a sleeve. or gland 5 internally threaded at its innerend tl. Within the threaded inner end of the gland 5 is a readilyremovalile,reversible valve seat, consisting ol a tubular portion 7externally threaded and havingr between its ends, preferably but notnecessarily midway between its ends, a seating flange 8 adapted 1.o seaton the end oi" the gland 5'. l The valve has a rounded or other suitablyshaped top .meetingA nn-mliol's nl' its ends The lift oi the valve islimited, and the distfinee el lift is adjusted hynieansol a serew 13,serewed through the union l direetlyover the top oi the valve. Water ltohe admitted to the hoiii-r will enter pipe l2, lill the valve 9, e-.iusethe passages vll to he moved ahove the upper edge of the removable,reversille seal. and thx-rehy permit the water 1o flow through .sa-ifiopenings hy way ofthe passage 2 to the boiler.

It will he noted that the diameter of the largest. part ol' theremovahle, reversible seat, that. is, the flange il, isnot greater thanthe external diameter of the gland. so that lay removing the gland 5 thesent. und vulve may he removed with it. -lf the sent lweonies worn :itits vont-(iet, suriaee with the mushroom head El, it. may he eithertrimmed down, or removed from the gland and I reversed7 so :is topresent the lower, unworn end lo thivalve.

l elaiinl. The combination willi a pipe union hai/iner pillo con- :indallxrended nipple Iwtwoen tlio'onds; of v:i gland screwed into snidnipple und projecting: nlo Ihr` union, :L tubular valve seul externallythreaded .1nd hnvinp; zi ventral flange seated on the 'nd of the gland.:i mushroom valve hnviin; u solid lil-nd :ind a tnhulnr stem extendingthrough the sont and into the gland with passages' through said stein:ind :i svrew-in llutop ol" Iliennion over the head of the volvito :idinsl and liinit the lift ot' sniil valve said .sont nndvnlvo roniovnhlowith the gland.

2. 'Vlie eomliinolion with n pipe union haring' :in internally lin-endednipple between its ends. :i glnnll taking' into the nipple. arerersililrvalvejsont serum-d on the end of the ,ef-huid und :l valvelmvine4 :i hollow perron-lied stem pas. im: through thivnlrdsezlt intolln` gland. thil diamolor ol` tlilvalve und vulve .si-al not heine'grenier than tho external dininelertvol' ille e'lnnil. whereby when theglnnd is' removed all operntiro parls will lw ronn'ivi-d lroni theunion.

'Iiinony thnl l elum lho foregoing uV my invention, enr-d in v nume inprosmmfol' two subscribing wil- (iti

